.stochsim-lab {
  margin: 1.4rem 0 2rem;
  padding: 1rem;
  border: 1px solid #b8aaa2;
  background: #fffaf2;
  box-shadow: 0 4px 12px rgba(60, 31, 11, 0.08);
}

.stochsim-lab__title {
  color: #551414;
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
}

.stochsim-lab > p {
  margin: 0.45rem 0 0.8rem;
}

.stochsim-lab__controls {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.7rem;
  align-items: end;
  margin: 0.85rem 0;
}

.stochsim-lab__controls label {
  display: grid;
  gap: 0.25rem;
  margin: 0;
  font-size: 0.86rem;
  font-weight: 600;
}

.stochsim-lab__controls input,
.stochsim-lab__controls select {
  box-sizing: border-box;
  width: 100%;
  min-width: 0;
  height: 2.35rem;
  padding: 0.42rem 0.5rem;
  border: 1px solid #a89b92;
  border-radius: 0;
  background: #fff;
  color: #222;
  font: inherit;
}

.stochsim-lab__controls input:focus,
.stochsim-lab__controls select:focus {
  outline: 2px solid #9b5a5a;
  outline-offset: 1px;
}

.stochsim-lab button {
  min-height: 2.35rem;
  padding: 0.45rem 0.8rem;
  border: 1px solid #551414;
  background: #551414;
  color: #fff;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.stochsim-lab button:hover,
.stochsim-lab button:focus-visible {
  background: #7a2828;
}

.stochsim-lab__metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(125px, 1fr));
  gap: 0.55rem;
  margin: 0.9rem 0;
}

.stochsim-lab__metric {
  min-width: 0;
  padding: 0.55rem;
  border-left: 3px solid #8d5a4f;
  background: #fff;
}

.stochsim-lab__metric span {
  display: block;
  color: #655d57;
  font-size: 0.74rem;
}

.stochsim-lab__metric strong {
  display: block;
  overflow-wrap: anywhere;
  margin-top: 0.12rem;
  font-family: monocode, Consolas, monospace;
  font-size: 0.86rem;
}

.stochsim-lab canvas {
  display: block;
  box-sizing: border-box;
  width: 100%;
  height: auto;
  border: 1px solid #c8bdb5;
  background: #fff;
}

.stochsim-lab__caption {
  color: #655d57;
  font-size: 0.88rem;
  line-height: 1.5;
}

.stochsim-lab noscript {
  display: block;
  margin-top: 0.8rem;
  color: #7a1f1f;
}

@media (max-width: 720px) {
  .stochsim-lab__controls {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .stochsim-lab__controls button {
    grid-column: 1 / -1;
  }
}

@media (max-width: 430px) {
  .stochsim-lab {
    padding: 0.8rem;
  }

  .stochsim-lab__controls {
    grid-template-columns: 1fr;
  }
}